on chrome 4 ctrl+w isn't trapped, and closes the whole browser, refs #10279
on chrome 4 ctrl+w isn't trapped, and closes the whole browser, refs #10279

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@22086 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful